Right control method for multicast service and its optical network unit and optical line terminal

A technology of optical line terminal and optical network unit, which is applied in the field of Ethernet passive optical network, and can solve the problems such as unfavorable IPTV business personalized service network refined operation, no user management of channel access rights, etc.

Active Publication Date: 2008-03-26
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a major defect in the existing multicast implementation is that there is no user access authority management for channels in the system. All users have the same authority. U...

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  • Right control method for multicast service and its optical network unit and optical line terminal
  • Right control method for multicast service and its optical network unit and optical line terminal
  • Right control method for multicast service and its optical network unit and optical line terminal

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Embodiment Construction

[0053] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0054] The basic idea of ​​the multicast service authority control method of the present invention is that the OLT performs user authentication based on the user identification information carried in the IGMP (Internet Group Management Protocol) control message, and controls the ONU to forward the multicast data message by extending the OAM message control. The main functions of the OLT and ONU in the present invention are described below.

[0055] The OLT maintains the user multicast service authority control table, and centrally manages the user's multicast service access authority. The OLT utilizes the user's LLID and the identification information carried in the uplink IGMP report (Report) message to identify the user, and judges whether the user has the access authority of the applied multica...

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Abstract

This invention discloses a control method for purview of multicast service of Ethernet passive optical network, an optical network unit and an optical line terminal, in which, the control method includes: an ONU receives a joining request of a multicast set of a user with an ID of the identity of the user and sends the request to the optical line terminal, which enquires the visit purview of the user to the multicast set and sets up a multicast transmit item transmitting said multicast set data to the user in the ONU when determining that said user can visit said set, when the ONU receives the data, it transmits the data to the user according to the transmit item.

Description

technical field [0001] The invention relates to the Ethernet passive optical network technology, in particular to a multicast service authority control method of the Ethernet passive optical network, an optical network unit and an optical line terminal. Background technique [0002] EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) technology is an emerging Ethernet-based broadband passive optical network technology. It is essentially an extension of Ethernet in the field of access networks. The structure of the EPON system is as shown in Figure 1, including OLT (OpticalLine Terminal, optical line terminal) 11, optical splitter 12 and ONU (OpticalNetwork Unit, optical network unit) 13, the PON mouth of an OLT 11 can pass optical branch The device 12 is connected to a plurality of ONUs 13. The downlink data transmission method from the OLT to the ONU is generally a time-division multiplexed physical layer broadcast method, that is, each downlink fram...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L12/58H04L9/32
Inventor 王作强王波沈成彬蒋铭曹敏陈文赵焕东胡卫
Owner CHINA TELECOM CORP LTD
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